Wall construction



July 1 1924. 1,499,787.

w. A. L. scHAEFER WALL CONSTRUCTION Filed Deo. ii, 13,22

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Patented July l, 1924i.

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WILLIAM A. I.. SCHAEIER, or CHICAGO,

ILLINOIS, AssIeNoR yro JOINTLEss Fran- IBRICK CO., F CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

WALL CONSTRUCTION.

Application filed Deember 11, 1922. serial No. 606,182.

To all whom t may'nccm: j,

. Be it known that I, WILLIAM A. L.l SCHAEF- ER, a citizen of the United Stategresiding at Chicago, in the county of Cook, and State of Illinois, have invented a certain new and useful Improvement in Wall Construction, of which Vthe following is a full, clear, concise, and exact. description, reference being had tothe accompanying drawings, forming apart of this specification.

My invention relates to improvements -in wall construction and more particularly to improvements infthe construction ofl walls which are subjected to intenseheating afnd to fluctuating temperatures such as' the walls of boiler settings, furnaces and the like.

, The resulting expansion and contraction in walls of this sort hasl heretofore caused cracking, breaking andl the opening of orevi'ces which permit leakage and cause rapid disintegration. In the bai'iewall of a tubular boiler this di'iculty is increased by expansion, contraction rand 4sagging of the boiler tubes.

An object 4of my invention is to avoid such cracking, breaking and .v crumpling and to prolongthe life of walls of this sort.

Another Objectis the provision of an improved method of anchoring such walls.

Anotherfobject is the provision of an improved joint .that will permit expansion without injury. Y

Another object is the provision ofan veffectiveyet simple and inexpensive joint and method to this end.

vAnother object is the provision of a joint which .will not only permit expansion and contraction without injury but will permit sagging of the boiler tubesV as well.

VFurther objects and advantages of the invention. will become apparent as this description proceeds.

In the accompanying drawings- Figure 1 is a more or less diagrammatic longitudinal section through a boiler section showing an embodiment of my invention in connection therewith; and

Figure 2 is an enlarged detailed section showing another embodiment of the invention.

Although not limited to that particular purpose7 in the embodiment selected for illustration I have shown the invention as employed in anchoring the baliie wall 5 of a typical boiler setting indicated generally at 6 and including battle wall 5, bridge wall 7 and rear wall 8, the tube 9 of the boiler extending from the front header 10 through the baffle wall 5 and to the rear header 11.

In accordance with my invention a ditch or trench 12 is providedlengthwise along the top of the bridge wall 7 which bridge wall while preferably a monolithic wall installed in plastic condition and vitriiedmay be of ordinary bonded brick or tile or of any other suitable or preferred l construction. Temporary supporting` means comprising in this particular instance a strip of wood V13 is arranged lengthwise through the channel or ditch 12 resting upon the bottom thereof and the baffle wall 5 is then installedY ina plastic condition about the tubes 9 between temporary forms or against the flame plate where such plate is employed and down into the ditch or channel 124 and upon the upper. surface of the anchoring or supporting strip 13.

To provide clearance between the sidesl of the channel or ditch 12 temporary positioning strips 14 of card board, wood or the like are arranged therebetween. After installation, the plastic fire brick baffle is dried out by a slow fire toy remove the 'moisture and the heat is then gradually increased to bake the plastic material and vitrifyy the same forming a jointless one-piece self-supporting baffle.V As the battle becomes self-supporting the temporary anchoring or supporting strip 13 and the temporary positioning strips 111 are burned out or at least contracted or shrivelled up, providing clearance about the entire lower edge of the baflie wall, along the bottom and up between the sides of the adjacent sidesl of the Abridge wall. This clearance permitsy the expansion and contraction resulting from the intense heating and iuctuating temperatures to which the walls are subjected, without cracking, breakinglor other injury to the bailie or bridge wal While the strip 13 is shown as being of substantially the width of the baiie wall 5` it may be of greater width or otherwise dimensioned as desired. The invention is especially suited for anchoring a baffle wall installed in plastic condition and baked into a one-piece soliolV wall and I have therefore described the invention in that connection. I do not however intend thereby to limit the invention in anyway touse in connection with baille walls or to use only where the wall is constructed of plastic lire brick material as described. The bae wall may be otherwise formed and as already pointed out the bridge wall may be formed of the same material and have the saine coefficient of expansion as the bai'iie wall or it may be of difierent material and have a different coeicient of expansion. rlhe temporary supporting and positioning strips may be of other material than wood or card board within the scope of my invention and they may be completely destroyed or only contracted or shrunk or otherwise displaced to provide the desired clearance about the bottom of the wall.

ln addition to permitting expansion and contraction of the walls and tubes withoutinjury, the clearance about the lower edge of the baiiie wall permits that sagging of the boiler tubes which is practically impossible to prevent and which without such a joint would result in injury to the wall. The positioning strip la may be relatively thin as compared with the strip 13 because the expansion up and down is considerably greater than the transverse expansion. p

ln the embodiment shown in Figure 2 the baflie wall 20 inclined forwardly slightly instead of being arranged substantially vertical as shown in lEigure l.

I claim:

1. The method of constructing a wall which comprises making all points of support for one surface of the wall temporary to temporarily anchor the wall until selfsupport-ing andV when self-supporting freeing the entire surface of the wall anchored by said temporary anchoring means.

2. The method of constructing a wall which comprises anchoring same temporarily upon another wall until self-supporting, and when self-supporting freeing the entire anchored portion of said wall to provide a clearance between it and the other wall.

3. The method of constructing a wall which comprises temporarily anchoring same until self-supporting and when selfsuplporting freeing the entire bottom of the wa 4;. In combination, a support, a wall and Leraars? temporary anchoring means between the wall and support, said temporary anchoring means being adapted to free the entire bottoni of the wall to provide clearance between all points of the wall and said support.

5. ln combination, a wall, a second wall anchored thereon, temporary anchoring means between said walls, said temporary anchoring means being adapted to free the entire anchored portion of said second wall to provide clearance between said walls.

6. ln combination, a bridge wall, a ditch lengthwise along the top thereof, temporary supporting means in said ditch and a plastic tire-brick baffle wall anchored in said ditch and upon said temporary supporting means.

7. In combination, a bridge wall, a ditch lengthwise along the top thereof, temporary supporting and positioning means along the bottom and sides of said ditch and a plastic fire-brick baiiie wall anchored in said ditch against said temporary supporting and positioning means.

8. ln combination, a bridge wall, a strip of wood there along, a plastic ire-briclr baiiie wall anchored upon said strip of Wood, said anchoring strip being destroyed by the heat applied in baking the bae wall to provide clearance and lpermit expansion of the wall without injury.

9. In combination, a support having a recess therein, temporary anchoring means in said recess and a wall anchored in said recess and upon y said temporary anchoring means.

l0. ln combination, a wall, a second wall anchored thereon, atemporary anchoring member between said walls, said first wall overlapping said temporary anchoring mem ber and a portion of said second wall.

1l. In combination, a wall, a support, a plurality of tubes extending from one side of the wall to the other and temporary anchoring means for said wall, said temporary anchoring means being .carried by said support and extending without interruption along the wall in a transverse direction with respect to said tubes.

In witness whereof, I hereunto subscribe my name this 7th day of December, 1922.

WLLIAM A. L. SCHAEFER. 

